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Can't view recordings on pc

I recently bought a new PC (Windows 8) and installed a PVR-2250 card. I opted to stay with GBPVR - version 1.4.7 - because I use it almost exclusively with my four MVPs. I also only enabled analog channels.

Although the system works flawlessly when viewing on the MVPs, I can't watch anything on the PC. The program immediately closes when I hit "play". I suspect the problem is on the recording side, rather than playback, since I get the same results when I attempt to view a recording on WinTV, i.e., the program immediately shuts down. I can, however, watch shows on WinTV that were recorded on WinTV.

More info needed.
Did you just copy your old software across or did you install from scratch?
Do the MVP's play newly recorded (on new machine) show OK?
If you still have your old machine can you view a new reco9rding (copy across and put it in video's folder??)
Logs may well help to find what is happening.

sounds like a de-mux problem...try registering a new mpeg demux filter...like from mpchc standalone filters...
or LAV decoders...includes a demux as well..
when playing in-progress files, it uses gb's demux, when playing file afterwards, it uses windows' default demux...
i use MpegSplitter.ax from mpchc, and set it's merit to highest with gspot..works a charm..[better than MS's built-in one]

I see you are using ffdshow. I assume you installed the current tryouts and not the obsolete ffdshow from years ago. Did you enable mpeg2 decoding, it is disabled by default. Also depending on how you installed the options you may need to whitelist pvrx2.exe and disable blacklisting.

Success

I was finally able to get it working by using the Hauppauge decoders for both audio and video. In my previous machine with a PVR-150, I was able to leave everything at default with no problems.
Thanks to everyone for your help.